The East of England Ambulance Service, which has been criticised in the past over response times, is introducing 15 extra ambulances from today.
The service says it's also recruiting 75 new paramedics and 124 care assistants to cope with demand.
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Dry with clear or sunny spells. Winds easing overnight.
Very warm with sunshine. Chance of thundery showers late morning.
A hot, humid and sunny start before cloud increases as a narrow band of thunderstorms spreads northeast. These clear during the afternoon.